Problem 4 At the instant shown, the excavator travels forward with a velocity of 2.5 m/s and an acceleration of 1.5 m/s? while the upper frame rotates about the z axis with a constant angular velocity of wz = 0.3 rad/s. At the same instant, 0 = 53.13° and boom assembly OBC rotates upward at a constant angular velocity of wx = 0.25 rad/s measured relative to the upper frame. The 90° angle at B remains fixed. Determine the angular velocity of boom assembly OBC. Determine the angular acceleration of boom assembly OBC. Determine the position vector rcio pointing from O to C. Determine the velocity of point C. Determine the acceleration of point C. 5 m 0. = 0.3 rad/s 4 m 900

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Problem 4
At the instant shown, the excavator travels forward with a velocity of 2.5 m/s and an
acceleration of 1.5 m/s? while the upper frame rotates about the z axis with a constant
angular velocity of wz = 0.3 rad/s. At the same instant, 0 = 53.13° and boom assembly
OBC rotates upward at a constant angular velocity of wx = 0.25 rad/s measured relative
to the upper frame. The 90° angle at B remains fixed.
Determine the angular velocity of boom assembly OBC.
Determine the angular acceleration of boom assembly OBC.
Determine the position vector rcio pointing from O to C.
Determine the velocity of point C.
Determine the acceleration of point C.
5 m
0. = 0.3 rad/s
4 m
900
Transcribed Image Text:Problem 4 At the instant shown, the excavator travels forward with a velocity of 2.5 m/s and an acceleration of 1.5 m/s? while the upper frame rotates about the z axis with a constant angular velocity of wz = 0.3 rad/s. At the same instant, 0 = 53.13° and boom assembly OBC rotates upward at a constant angular velocity of wx = 0.25 rad/s measured relative to the upper frame. The 90° angle at B remains fixed. Determine the angular velocity of boom assembly OBC. Determine the angular acceleration of boom assembly OBC. Determine the position vector rcio pointing from O to C. Determine the velocity of point C. Determine the acceleration of point C. 5 m 0. = 0.3 rad/s 4 m 900
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